These are known as one of the tallest plants on the planet. There are more than 700 sorts of eucalyptus that fit in with the family Myrtaceae. Most eucalyptus species are evergreen plants. Other than as trees, a couple sorts of eucalyptus make as shrubs. Most sorts of eucalyptus are nearby to Australia, New Guinea and Indonesia. Eucalyptus is basic and significantly manhandled plant by virtue of its wood and oil. Eucalyptus is financially created in tropical and subtropical areas all over the place all through the world. Since it ingests colossal measures of water from the earliest starting point, can be used for draining of bogs. It can moreover execute intestinal infection by obliterating wet regular surroundings which are required for progression of mosquito’s eggs. Shockingly, drying of the soil oppositely impacts other plant species.

Teak plants:-

They have been widely established throughout the tropics to produce high quality timber in trees of good growth and stem form. Many factors affect the success of teak planting programmes including site, seed supply and seed quality, management and other biological factors such as insects. Site is the primary factor influencing plantation growth and development. Growth and yield of plantations grown in different site qualities, within and outside the teak region is illustrated. With correct site selection, growth and yield can be improved more than 100 %. The composition of suitable teak sites is reviewed. Seed supply is a factor limiting planting scale and the quality of the plantation, especially so in countries where teak is an exotic.

Poplar plants:-

Poplars are rapid-growing but relatively short-lived trees. They are widely distributed throughout the northern temperate regions, ranging from North America through Eurasia and northern Africa. The leaves are alternate and oval or heart-shaped in outline, with finely to coarsely toothed margins (leaf edges). The leaves characteristically tremble in the breeze, because of their flat petioles (leaf stalks). In North America, aspens usually have nonsticky buds and smooth gray-to-green bark, whereas cottonwoods and balsam poplars have sticky buds and bark that is darker and deeply furrowed. Poplars are dioecious plants. Their male and female flowers grow on separate trees and bloom in droopingcatkins (pendulous unisexual flower clusters) before the leaves emerge, to facilitate wind pollination. The fruits are small thick-walled capsules that contain many minute seeds clothed in cottony tufts of silky hairs. The seeds are often released in great quantities, and the fluffy seed hairs assist in wind dispersal.